Shorefishes of the Eastern Pacific online information system

Español  Contact

Species: Auxis rochei eudorax, Bullet tuna, Bullet mackerel

All Families:   All Genera:   All Species:

rear extension of scaly corselet wide (14-30 scale rows)
back: patch of lines not reaching under D1 or over pectoral

Auxis rochei eudorax Collette & Aadland, 1996

Bullet mackerel, Bullet tuna

Body elongate, rounded; no fatty eyelid; jaw teeth slender, conical; top of tongue with 2 ridges; 2 dorsal fins widely separated; 1st dorsal  IX-XI spines; ~8 finlets behind 2nd dorsal fin, ~7 behind anal fin; a single-pointed long bony process between pelvic fins; pectoral fins short, not reaching a vertical line from anterior margin of scaleless area on back; 1 large + 2 small keels on tail base; tail fin deeply forked; 1 lateral line; a well developed corselet of scales on front of body, rear extension of corselet is wide  (14-30 scale rows wide under 2nd dorsal fin).

Back dark bluish; a patch of 15 or more fairly broad, nearly vertical dark bars in scaleless area above lateral line, patch starts behind 1st dorsal and pectoral fins, belly white.

Maximum size, 55 cm.

Inhabits coastal and oceanic waters, forming large schools.

Depth: 0-200 m.

Worldwide in tropical and subtropical seas; the subspecies A. rochei eudorax is restricted to the eastern Pacfic; from California to the lower Gulf of California to Peru and the offshore islands.

High Resolution Map Download

Species Data Create Report Export as Word File Export as Excel File
  • Marine Only
  • Marine
  • Offshore
  • Offshore Only
Water Column Position
  • Mid Water
  • Surface
  • Near Surface
  • Water column only
  • Water column
FishBase Habitat
  • Pelagic
Feeding Group
  • Carnivore
  • Data
  • Pelagic crustacea
  • Bony fishes
  • Octopus/squid/cuttlefish
  • Data
Egg Type
  • Pelagic larva
  • No data
  • Pelagic
Global Endemism
  • All species
  • Tropical Eastern Pacific (TEP) endemic
  • East Pacific endemic
Regional Endemism
  • Island (s)
  • Continent
  • TEP endemic
  • All species
  • Continent + Island (s)
  • Resident
Climate Zone
  • South Temperate (Peruvian Province )
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
  • Northern Subtropical (Cortez Province + Sinaloan Gap)
  • North Temperate (Californian Province &/or Northern Gulf of California)
  • Northern Tropical (Mexican Province to Nicaragua + Revillagigedos)
IUCN Red List
  • Least concern
  • Listed
  • Not listed
Length Max
  • 55
Depth Range Min
  • 0
Depth Range Max
  • 200